If someone is selecting Jan, feb, march (Example) in lowest operating cost, he/she shouldn’t be able to select same months in high operating cost

If someone is selecting Jan, feb, march (Example) in lowest operating cost, he/she shouldn’t be able to select same months in high operating cost.
note:-month should be visable in next option but user can not access .
Cascading Select (Multiple Questions) (1).xlsx (26.6 KB)

Welcome back to the community, @dipendra! Maybe you could do it as outlined in the image shared below:

In the survey tab of your XLSForm:

In the choices tab of your XLSForm:

Data entry screen as seen in Enketo:

Reference XLSForm:

choice_filter.xlsx (62.7 KB)

thanks for helping … but my question is …
As per your example the option should be visible in Q2 (user can see the option but he cannot select the option which he selected in Q1)